Correction: A roadmap for laser optimization of Yb:Ca₃(NbGa)₅O₁₂-CNGG-type single crystal garnets

Abstract

Correction for ‘A roadmap for laser optimization of Yb:Ca₃(NbGa)₅O₁₂-CNGG-type single crystal garnets’ by J. O. Álvarez-Pérez et al., J. Mater. Chem. C, 2021, 9, 4628–4642, DOI: 10.1039/d0tc05718e.

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The authors regret that in the published work the Yb³⁺Z_l/Z_U value given was erroneous. The correct value according to the energy level selection given in Fig. S13 in the ESI is Z_l/Z_U = 1.044. Thus, Fig. 5 in the published article must be replaced with the corrected version shown below. Accordingly, the maximum emission cross sections are σ_EMI = 1.35 × 10⁻²⁰ cm² for Yb:CLNGG, σ_EMI = 1.12 × 10⁻²⁰ cm² for Yb:CNGG and σ_EMI = 1.17 × 10⁻²⁰ cm² for Yb:CNNGG. The radiative lifetimes calculated by the Füchtbauer–Landeburg method using these new emission cross sections are τ_RAD = 611 μs for Yb:CNGG, τ_RAD = 644 μs for 12.23 at% Na: 7.13 at% Yb:CNNGG and τ_RAD = 582 μs for Yb:CLNGG, i.e. much closer to the experimentally determined value, τ_RAD ≈ 800 μs, than those reported in the published article (τ_RAD = 419–464 μs).

Fig. 5 (a) Emission cross section, σ_EMI, of Yb:CNGG-type crystals. (b) Gain cross sections of Yb:CNGG-type crystals. Circles are for Yb:CNGG, β = 0.05. Triangles are for Yb:CNNGG, β = 0.05. The lines correspond to Yb:CLNGG for different β values.

These corrections have no effect on any other results published in the article, and do not affect the discussion or any of the published conclusions. The authors sincerely apologize for this error.

The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers.

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